Ios 11.0.3 -Music app - Airplay selection popup

I am not able to find page source or popup handling of Music App using Appium for ios 11.0.3

steps to reproduce

  1. Open music app
  2. Select song
  3. Click on Select airplay device

Challenge:

  1. I am not able capture page source of element of popup

Approach:
tried to capture page source but popup source not listed.

Please help.